Using whiteboard markers and erasers at work has left half a dozen of my shirts with big black marks on them - not a problem I ever had when using white chalk! So it sounded like good news when my friend Ava had a look at one and confidently said she had the necessary cleaning materials to remove the stain and whiten it all up again. However, she returned with her first attempt yesterday looking very sheepish. Her first application had got rid of most of the mark, but she then decided to go for a second application to finish the job. That one just left a large shredded hole [see photo] where the mark had once been! She claims she "successfully removed the stain" as promised, but I had sort of expected the shirt to still be there! She left with a second stained short, hoping to perfect the process... I'm not holey convinced!